TROUBLESHOOTING
Check the shaft is turning freely. Remove
any dirt and/or scale.
Dirt or scale between the rotor and the stator
lining or between the impeller and pump
body.
The pump starts and then stops after a short
time
Bleed the pump.
Increase the intake pressure.
Air in the pump.
Intake pressure too low.
The pump is noisy
Select a lower speed.
Bleed the system.
Flow rate to high.
Air in the system.
The system is noisy
Check the electric connections and fuses.
Check the data on the plate and apply the
corect voltage.
Change the capacitor.
Select the maximum speed and/or free with a
screwdriver.
No supply voltage.
Incorrect supply voltage.
Faulty capacitor ( single phase motors).
Rotor is blocked by deposits on the rotor.
The pump does not start
REMEDIES
POSSIBLE CAUSES
FAULTS
